function contactFormValidation() {

	var name = document.getElementById('contact_name').value.trim();
	var email = document.getElementById('contact_email').value.trim();
	var message = document.getElementById('contact_message').value.trim();

	var emptyField = false;

	if(message.length < 1) emptyField = "Mesaj";
	if(email.length < 1) emptyField = "E-mail";
	if(name.length < 1) emptyField = "İsmini (şirket ismi)";
	
	if(emptyField) {
	
		alert("Bu alanı \"" + emptyField + "\" lütfen doldurunuz !");
		return false;
	
	}
	
	if(!isEmail(email)) {
	
		alert("Email is not valid !");
		return false;
	
	}

	return true;

}

function isEmail(email) {
	
	return email.match(/^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,6}$/i);
	
}

String.prototype.trim = function() {
	return this.replace(/^\s+|\s+$/g,"");
}

function externalLinks() {  
 if (!document.getElementsByTagName) return;  
 var anchors = document.getElementsByTagName("a");  
 for (var i=0; i<anchors.length; i++) {  
   var anchor = anchors[i];  
   if (anchor.getAttribute("href") &&  
       anchor.getAttribute("rel") == "external")  
     anchor.target = "_blank";  
 }  
}

// autofit <ul>
function sliderAutoWidth() {

	var numOf = $("#content-holder > li").length;
	$("#content-holder").width(numOf * 180);

}

$(document).ready(function() {

	$("a.anchorLink").anchorAnimate()

	// skocimo na #home, ampak samo ce ni IDja podanega
	if(document.location.hash.length < 1) {
		
		//document.location = "#home";
		$("a.home.anchorLink").click();
		
	}

	externalLinks();
	
	// contact submit form validation
	document.getElementById('contact_form').onsubmit = contactFormValidation;
	
	sliderAutoWidth();
	
	// SLIDER
	$(document).ready(function(){
	  $("#content-slider").slider({
		change: handleSlider,
		slide: handleSlider,
		orientation: 'horizontal',
		handle: ".ui-slider-handle"
	  });
	});		

});

// SLIDER handler
function handleSlider(e, ui)
{
	var maxScroll = $("#content-scroll").attr("scrollWidth") - $("#content-scroll").width();
	$("#content-scroll").attr({scrollLeft: ui.value * (maxScroll / 100) });
}